#include <stdio.h>
#include <math.h>
const double eps = 1e-8;
#define Equ(a,b) ((fabs((a)-(b)))<(eps))
int main(){
	double db=1.23;
	if(Equ(db,1.23)){
		printf("true");
	}else{
		printf("false");
	}	
	return 0;
} 
